JP2021029199A - Panel for cultivation, and plant cultivation method - Google Patents

Abstract

To provide a panel for cultivation which can suppress variation of the sizes of plants.SOLUTION: A panel for cultivation 1 comprises: a first hole group 31 having a first hole row 21 in which a plurality of through-holes 210 is arrayed in a longitudinal direction, and a second hole row 22 which is provided at a position apart from the first hole row 21 in a short-length direction, and in which a plurality of through-holes 220 is arrayed in a longitudinal direction; and a third hole row 23 which is formed such that a distance Lb between one through-hole 230 in a plurality of through-holes 230 arrayed in a longitudinal direction and a through-hole 220 that the second hole row 22 of the first hole group 31 has becomes larger than a distance La between adjacent through-holes 220 of the second hole row 22.SELECTED DRAWING: Figure 2

Description

The present invention relates to a cultivation panel and a plant cultivation method.

In recent years, in plant factories, hydroponics has been adopted in which plants are grown using an aqueous solution (nutrient solution) in which nutrients necessary for growth are dissolved without using soil. For hydroponics, hydroponics panels are used to hold the plants at intervals. For example, in the hydroponic cultivation panel described in Patent Document 1, a plurality of through holes are formed in a square panel body formed of a foamed resin at predetermined intervals.

Japanese Unexamined Patent Publication No. 2012-165680

When a plurality of through holes formed in a cultivation panel used for hydroponics are evenly spaced, a plurality of plants cultivated in this cultivation panel may not grow to a uniform size. For example, the size of a plant cultivated in a through hole surrounded by other plants may be smaller than the size of a plant surrounded by other plants.
An object of the present invention is to provide a cultivation panel or the like capable of preventing variations in the size of plants.

The present invention completed for this purpose is provided at a position away from the first hole row in which a plurality of holes are lined up in one direction and the first hole row in the other direction intersecting the one direction. A first hole group having a second hole row in which a plurality of holes are arranged in one direction, one hole among the plurality of holes arranged in one direction, and the first hole. With the third hole row formed so that the first distance between the holes of the second hole row of the group is larger than the second distance between the adjacent holes of the second hole row. It is a cultivation panel provided with.
Here, the holes in the first hole row and the holes in the second hole row do not have to overlap in one-way positions.
In addition, two holes in the first hole row and one hole row in the second hole row, and one of the first hole row and the other hole row in the second hole row. The two holes may be arranged so as to be the vertices of an equilateral triangle.
Further, the first hole row, the second hole row, and the third hole row are arranged in the other direction in this order, and the holes of the second hole row and the third hole row The positions in the longitudinal direction do not have to overlap with the holes.
Further, the two adjacent holes in the second hole row and one hole in the third hole row may be arranged so as to be the vertices of an isosceles triangle.
Further, when viewed in the direction of the center line of the hole, the cultivation panel has a rectangular shape, the one direction is the longitudinal direction of the rectangle, and the other direction is the lateral direction of the rectangle. Is also good.
Further, a first hole row in which a plurality of holes are arranged in one direction and a position separated from the first hole row in the other direction intersecting the one direction are provided, and a plurality of holes are provided in the one direction. The first hole group having the second hole row arranged side by side, the third hole row having a plurality of holes lined up in one direction thereof, and the third hole row in the other direction are separated from each other. A second hole group having a fourth hole row provided at a position and having a plurality of holes arranged in one direction thereof is provided, and the first hole group is adjacent to the second hole row. The first hole so that the distance between the hole of the second hole row and the hole of the third hole row of the second hole group is larger than the distance between the holes to be formed. The hole group and the second hole group may be separated from each other in the other direction.
From another point of view, the present invention is located at a position separated from the first hole row in which a plurality of holes are lined up in one direction and the first hole row in the other direction intersecting the one direction. A first hole group having a second hole row provided and having a plurality of holes arranged in the one direction, one hole among the plurality of holes arranged in the one direction, and the first hole. A third hole row formed so that the first distance between the holes of the second hole row of the hole group and the holes of the second hole row is larger than the second distance between adjacent holes of the second hole row. It is a plant cultivation method including a step of installing a cultivation panel including the above, and a step of planting a plant in the hole formed in the cultivation panel.
Here, in the step of setting, the cultivation panel is installed in a plant cultivation device provided in a closed plant factory, and in the step of planting, leaf lettuce is formed in the hole formed in the cultivation panel. You may plant it in.

According to the present invention, it is possible to provide a cultivation panel capable of preventing variations in the size of plants.

It is a figure which shows an example of the schematic structure of the cultivation panel which concerns on 1st Embodiment. It is a top view of the cultivation panel which concerns on 1st Embodiment. (A) is a figure which shows the plan view of the cultivation panel which concerns on a comparative example. (B) is a figure which shows the weight of lettuce after lettuce was grown in the same environment for a predetermined period in all through holes of the panel which concerns on Comparative Example. (A) is a figure which shows the row which lettuce grew and the row which did not grow using the panel which concerns on a comparative example. (B) is a figure which shows the weight of lettuce after growing lettuce in the same environment for a predetermined period in the growing row shown in (a). It is a top view of the cultivation panel which concerns on 2nd Embodiment. It is a top view of the cultivation panel which concerns on 3rd Embodiment. It is a figure which shows an example of the schematic structure of the plant cultivation apparatus, and is the figure which looked at the plant cultivation apparatus from the front.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
<First Embodiment>
FIG. 1 is a diagram showing an example of a schematic configuration of a cultivation panel 1 according to the first embodiment.
The cultivation panel 1 according to the first embodiment has a rectangular parallelepiped panel body 10 formed with a plurality of columnar through holes 20. The cultivation panel 1 is used for hydroponically cultivating leafy vegetables, fruit vegetables, root vegetables, fruit trees, cereals, mosses, ferns, foliage plants, medicinal herbs and the like.

FIG. 2 is a plan view of the cultivation panel 1 according to the first embodiment. FIG. 2 is also a view of the cultivation panel 1 viewed in the direction of the center line of the through hole 20.
As shown in FIG. 2, the panel main body 10 has a rectangular shape in a plan view in which the horizontal direction of FIG. 2 is the longitudinal direction and the vertical direction of FIG. 2 is the lateral direction. Further, the panel main body 10 has a flat plate shape in which the sizes in the longitudinal direction and the lateral direction are larger than the sizes in the vertical direction (direction orthogonal to the paper surface of FIG. 2). For example, it can be exemplified that the size of the panel body 10 in the longitudinal direction is 125 (cm), the size in the lateral direction is 81 (cm), and the size in the vertical direction is 10 (cm). It can be exemplified that the material of the panel body 10 is a foamed resin such as expanded polystyrene, expanded polyethylene, and expanded polypropylene.

The through hole 20 is a hole that penetrates the panel body 10 in the vertical direction. The plurality of through holes 20 have the same hole diameter D.
The plurality of through holes 20 are provided at a position separated from the first hole row 21 by a distance L12 in the lateral direction from the first hole row 21 in which the plurality of through holes 210 are arranged in the longitudinal direction, and are provided in the longitudinal direction. It has a second hole row 22 in which a plurality of through holes 220 are arranged, and a first hole group 31 having the second hole row 22.
Further, the plurality of through holes 20 are provided at a position separated by a distance L34 in the lateral direction from the third hole row 23 in which the plurality of through holes 230 are arranged in the longitudinal direction and the third hole row 23 in the longitudinal direction. It has a second hole group 32 having a fourth hole row 24 in which a plurality of through holes 240 are arranged in the direction.
Further, the plurality of through holes 20 are provided at a position separated by a distance L56 in the lateral direction from the fifth hole row 25 in which the plurality of through holes 250 are arranged in the longitudinal direction and the fifth hole row 25 in the longitudinal direction. It has a third hole group 33 having a sixth hole row 26 in which a plurality of through holes 260 are arranged in a direction.
The distance L12, the distance L34, and the distance L56 are the distances between the hole centers of the through holes 20. The distance L12, the distance L34, and the distance L56 are set to be the same.

Further, the first hole group 31 and the second hole group 32 are provided at positions separated by a distance L1 in the lateral direction. The distance L1 is the hole center of the second hole row 22 which is a hole row located close to the second hole group 32 in the first hole group 31, and the first hole in the second hole group 32. This is the distance in the lateral direction from the hole center of the third hole row 23, which is a hole row located close to the group 31.
Further, the second hole group 32 and the third hole group 33 are provided at positions separated by a distance L2 in the lateral direction. The distance L2 is the hole center of the fourth hole row 24, which is a hole row located close to the third hole group 33 in the second hole group 32, and the second hole in the third hole group 33. It is the distance in the lateral direction from the hole center of the fifth hole row 25, which is a hole row located close to the group 32.
The distance L1 and the distance L2 are set to be the same.

The first hole row 21 is formed at a position close to the first long side 11, which is one long side of the rectangular panel main body 10, when viewed in the plan view of FIG. The through holes 211 and the through holes 219, which are the through holes 210 at both ends of the first hole row 21, are formed in the vicinity of the vertices of the rectangular panel body 10, respectively. Then, between the through holes 211 and the through holes 219, the seven through holes 210 of the first hole row 21 are arranged at equal intervals.

The second hole row 22 has eight through holes 220, and these eight through holes 220 are arranged at equal intervals. Each through hole 220 of the second hole row 22 is formed so that the position in the longitudinal direction does not overlap with the through hole 210 of the first hole row 21. That is, the longitudinal distance Lc between the hole center of the through hole 210 of the first hole row 21 and the hole center of the through hole 220 of the second hole row 22 is larger than the hole diameter D of the through hole 20. Is set to. Further, in the longitudinal direction, the through hole 220 of the second hole row 22 is set to be located at the center between the two through holes 210 of the first hole row 21. That is, the two through holes 210 and the one through hole 220 are arranged so as to form an isosceles triangle.
Further, the distance L210 between the two through holes 210 and the distance L212 between the through holes 210 and the through holes 220 are set to be the same. That is, the two through holes 210 and the one through hole 220 are arranged so as to form an equilateral triangle. Therefore, the plurality of through holes 210 and through holes 220 of the first hole group 31 are all arranged at equal intervals.

The third hole row 23 has eight through holes 230, and these eight through holes 230 are arranged at equal intervals. Then, the distance Lb between the through hole 230 of the third hole row 23 and the through hole 20 of the first hole group 31, which is the closest position to the through hole 230, is the first. The distance between adjacent through holes 20 (through holes 220 and through holes 210 and through holes 220) among the plurality of through holes 20 included in the hole group 31 is set to be larger than the distance La (Lb). > La).
In the cultivation panel 1 according to the first embodiment, the position in the longitudinal direction of the through hole 230 of the third hole row 23 and the position in the longitudinal direction of the through hole 220 of the second hole row 22 are the same. It is set to be. Therefore, the distance L1 and the distance Lb are the same.

In the fourth hole row 24, there are nine through holes 240, and these nine through holes 240 are arranged at equal intervals. Further, the position in the longitudinal direction of the through hole 240 of the fourth hole row 24 and the position in the longitudinal direction of the through hole 210 of the first hole row 21 are set to be the same. Further, the distance between the two through holes 240 and the distance between the through holes 240 and the through holes 230 are set to be the same. That is, the plurality of through holes 20 of the second hole group 32 are all arranged at equal intervals. Further, the second hole group 32 and the first hole group 31 have symmetrical shapes.

The third hole group 33 has the same shape as the first hole group 31, and has a symmetrical shape with the second hole group 32. Then, the distance Ld between the through hole 250 of the fifth hole row 25 and the through hole 20 of the second hole group 32, which is the closest position to the through hole 250, is the second. The distance Le between adjacent through holes (through holes 240 and through holes 230 and through holes 240) among the plurality of through holes 20 included in the hole group 32 is set to be larger than the distance Le (Ld). > Le).
In the cultivation panel 1 according to the first embodiment, the position in the longitudinal direction of the through hole 250 of the fifth hole row 25 and the position in the longitudinal direction of the through hole 240 of the fourth hole row 24 are the same. Therefore, the distance L2 and the distance Ld are the same.
Further, as described above, since the distance L1 and the distance L2 are the same, the distance Lb and the distance Ld are the same. Further, the distance La and the distance Le are the same.

The cultivation panel 1 according to the first embodiment is configured as described above in all the through holes in the cultivation panel in which a plurality of through holes are formed at equal intervals by the present inventors. This is due to the finding that when plants are cultivated, multiple plants do not grow to a uniform size.
The following will be described in more detail.

FIG. 3A is a view showing a plan view of a cultivation panel according to a comparative example (hereinafter, may be referred to as a “panel according to the comparative example”).
In the panel according to the comparative example, a plurality of through holes are formed at equal intervals. That is, the panel according to the comparative example has 10 rows in which 5 through holes are arranged in the longitudinal direction, and the position in the longitudinal direction of the through holes in one row is the central position between the through holes in the adjacent rows. Is. Then, between one through hole among the five through holes in one row and the through hole in two other rows adjacent to the one row and the through hole adjacent to the one through hole. The distance is the same.

FIG. 3B is a diagram showing the weight of lettuce after growing lettuce in the same environment for a predetermined period in all the through holes of the panel according to the comparative example.
As shown in FIG. 3 (b), the average weight of the five lettuce grown in the first row from the upper side of FIG. 3 (b) was 187.1 (g). The average weight of the five lettuce grown in the second row from the top was 136.1 (g). The average weight of the 10 lettuce grown in the third and fourth rows from the top was 132.7 (g). The average weight of the 10 lettuce grown in the 5th and 6th rows from the top was 129.2 (g). The average weight of the 10 lettuce grown in the 7th and 8th rows from the top was 125.9 (g). The average weight of the 10 lettuce grown in the 9th and 10th rows from the top was 150.0 (g).

From the results shown in FIG. 3 (b), it can be seen that the average value of the weights of lettuce grown in the first row was the heaviest and the lettuce grew the largest. On the other hand, the average weight of lettuce grown in the third to eighth rows is about 70% of the average weight of lettuce grown in the first row. From these facts, the present inventors have found that the lettuce grown in the first row grows large because there is no other lettuce on the upper side of FIG. 3 (b), and the lettuce grown in the third row to The lettuce grown in the 8th row grows as much as the lettuce in the 1st row because all the lettuce grown in the 8th row is surrounded by 6 lettuce except the lettuce at the end in the longitudinal direction. I found that I didn't.

FIG. 4A is a diagram showing a row in which lettuce was grown and a row in which lettuce was not grown using the panel according to the comparative example.
FIG. 4B is a diagram showing the weight of lettuce after growing lettuce in the same environment for a predetermined period in the growing row shown in FIG. 4A. The predetermined period of the result shown in FIG. 4 (b) is the same as the predetermined period of the result shown in FIG. 4 (a).

As shown in FIG. 4A, lettuce was not planted in the 5th and 6th rows from the top in the panel according to the comparative example, and the other 1st to 4th rows and the other rows and Lettuce was planted and grown only in the 7th to 10th rows. Therefore, the distance between the lettuce in the fourth row and the lettuce in the seventh row is, at a minimum, greater than the distance between the adjacent through holes.

As a result, as shown in FIG. 4 (b), the average weight of the five lettuce grown in the first row from the top was 161.0 (g). The average weight of the five lettuce grown in the second row from the top was 144.0 (g). The average weight of the five lettuce grown in the third row from the top was 143.3 (g). The average weight of the five lettuce grown in the fourth row from the top was 180.0 (g). The average weight of the five lettuce grown in the seventh row from the top was 167.0 (g). The average weight of the five lettuce grown in the eighth row from the top was 148.7 (g). The average weight of the five lettuce grown in the ninth row from the top was 155.1 (g). The average weight of the five lettuce grown in the tenth row from the top was 183.4 (g). In addition, the standard deviation of the weight of lettuce in the result shown in FIG. 4 (b) was about 31%.

From the results shown in FIG. 4 (b), the average weight of lettuce grown in the 10th row was the heaviest, followed by the weight of lettuce grown in the 4th row. The average value of is heavy. Next, the average weight of lettuce grown in the 7th row is heavier, and then the average weight of lettuce grown in the 1st row is heavier. It is grown in these rows because there are no other lettuce above the lettuce in the first row and no other lettuce below the lettuce in the tenth row. It can be seen that the lettuce grew large. Further, the distance in the lateral direction between the through hole in which the lettuce in the fourth row is grown and the through hole in which the lettuce in the seventh row is grown is larger than the distance between the adjacent through holes. Therefore, it can be seen that the lettuce grown in these rows grew significantly.
In addition, from the results shown in FIG. 4 (b), the lettuce grown in the second, third, eighth, and ninth rows is the first, fourth, seventh, and so on. It can be seen that it did not grow as much as the lettuce in the 10th row.

From these facts, the present inventors have found that there is no other lettuce on the upper side or the lower side, or the distance between the through holes where the lettuce is grown is larger than the distance between the through holes adjacent to each other in the same row. When it was also large, it was found that it grew large. Also, like the lettuce grown in the 2nd, 3rd, 8th, and 9th rows, all the lettuce around is 5 lettuce except the lettuce at the end in the longitudinal direction. It was found that the lettuce did not grow as much as the lettuce in the 1st, 4th, 7th and 10th rows because it was surrounded.

Regarding the above items, if many plants are not grown around the plants that are planted in the through holes, the plants will not shield each other, so the light will shine better and the path of the wind will be secured. It is thought that this is because. When there is little movement in the air around the leaves of the plant, the ability to expel water from the stomata of the leaves is lost and the transpiration effect is reduced. As a result, the ability to suck up water from the roots is reduced, and nutrients do not reach the tips of the leaves. When nutrients do not reach the tips of the leaves, chip burn may occur in which the tips of the leaves die brown. On the other hand, by ensuring the passage of the wind (air flow), nutrients can easily reach the tips of the leaves and grow easily. Further, by ensuring the air flow, obstacles such as chip burn are less likely to occur. In particular, in the case of leaf lettuce, which is a variety that easily spreads laterally in the direction orthogonal to the hole direction of the through hole, it is better if many plants are not grown around one plant. Because it does not shield the plant, it grows larger and easier to grow.

Based on the above findings, in the cultivation panel 1 according to the first embodiment, each hole group (first hole group 31, second hole group 32, third hole group 33) is divided into two hole rows. (Between the first hole group 31 and the second hole group 32, and between the second hole group 32 and the third hole group 33). The distance Lb in the direction is set to be larger than the distance La between the adjacent through holes 20 in each hole group.

For example, the cultivation panel 1 has a first hole row 21 in which a plurality of through holes 210 are lined up in the longitudinal direction as an example in one direction, and a first hole row 21 in the lateral direction as an example in the other direction intersecting in the longitudinal direction. A first hole group 31 is provided at a position distant from the hole row 21 of 1, and has a second hole row 22 in which a plurality of through holes 220 are lined up in the longitudinal direction. Further, in the cultivation panel 1, the distance between one through hole 230 among the plurality of through holes 230 arranged in the longitudinal direction and the through hole 220 of the second hole row 22 of the first hole group 31 A third hole row 23 is provided so that Lb is formed so as to be larger than the distance La between adjacent through holes 220 of the second hole row 22.

In the cultivation panel 1 configured as described above, the first hole row 21 and the sixth hole row 26 do not have through holes 20 formed on the upper side or the lower side. Further, the through holes 20 of the second hole row 22, the third hole row 23, the fourth hole row 24, and the fifth hole row 25 are at least the distances between the through holes 20 of the opposing hole groups. Lb is larger than the distance between the through holes 20 in the same row. Therefore, the plants planted in all the through holes are well exposed to light, and the wind path is secured especially in the longitudinal direction, so that the plants can grow larger and more easily. In particular, in the case of leaf lettuce, which is a variety that easily spreads laterally, the plants do not shield each other, so that the plants grow larger and more easily.

Further, the through holes 220, through holes 230, through holes 240, and through holes 250 of the second hole row 22, the third hole row 23, the fourth hole row 24, and the fifth hole row 25 are in the longitudinal direction. Except for the through hole 20 at the end of, the condition of the distance to the surrounding through hole 20 is all the same. That is, four through holes 20 belonging to the same hole group are equidistant La in the periphery, and the distance Lb between the four through holes 20 belonging to the opposite hole group is larger than the distance La. Therefore, the through holes 20 are similarly exposed to light, and it is easy to secure a path for the wind.
Further, the through hole 210 of the first hole row 21 and the through hole 260 of the sixth hole row 26 are different in that there is no other through hole 20 on the upper side or the lower side, but the through hole 220, as described above, The condition that the through holes 230, the through holes 240, and the through holes 250 belong to the same hole group are four through holes 20 at equidistant La positions is the same.

From the above, according to the cultivation panel 1, even if the plant is grown in all of the plurality of through holes 20, the size can be prevented from varying. That is, according to the cultivation panel 1, the mutual shielding reduces adverse effects such as difficulty in hitting light and difficulty in securing a path for wind, so that variation in the weight of harvested plants is also reduced. In fact, when lettuce was cultivated in all of the plurality of through holes 20 using the cultivation panel 1, the standard deviation of the weight of lettuce was about 26%. This is a value lower than about 31% of the standard deviation of the weight of lettuce in the result shown in FIG. 4 (b). Moreover, when the cultivation panel 1 was used, no chip burn was observed. When the panel according to the comparative example was used, mild chip burn was observed.

Further, in the cultivation panel 1, each hole group is composed of two hole rows, and the distance in the lateral direction between the adjacent hole groups is larger than the distance between the adjacent through holes in each hole group. By setting so as to be, the distance between the through holes 20 belonging to the same hole row can be reduced. Along with this, as described above, three through holes 20 among the plurality of through holes 20 belonging to each hole group can be arranged so as to form an equilateral triangle. Further, since they are arranged so as to form an equilateral triangle, the distance in the lateral direction of each hole group can be reduced. Therefore, for example, the through holes 20 of the two hole rows belonging to each hole group are positioned in the same longitudinal direction, and the through holes 20 of one of the two hole rows and the through holes of the other hole rows are made the same. Compared with the case where the distance to 20 is the same as that of the cultivation panel 1, the distance between the two rows of holes in the lateral direction can be reduced to ^{3 1/2/2.}
From the above, even if the size of the panel main body 10 of the cultivation panel 1 and the size of the panel main body of the panel according to the comparative example are the same, substantially the same number of through holes 20 can be formed (for cultivation). There are 51 panels 1 and 50 panels according to the comparative example). Therefore, even if the cultivation panel 1 is used, the same productivity as that of using the panel according to the comparative example can be ensured. In other words, according to the cultivation panel 1, by changing the arrangement of the through holes 20 and the plant to be cultivated, the panel according to the comparative example is exposed to light without lowering the productivity. Since it can be facilitated and the passage of the wind (air flow) can be secured in the longitudinal direction, it is possible to prevent the size from being varied.

The cultivation panel 1 described above has a plurality of through holes 20 formed in one rectangular parallelepiped panel main body 10, but is not limited to such a mode. For example, the cultivation panel 1 may be configured by combining a plurality of parts.

<Second embodiment>
FIG. 5 is a plan view of the cultivation panel 4 according to the second embodiment.
The cultivation panel 4 according to the second embodiment has a different position of the through hole 20 formed in the panel main body 10 from the cultivation panel 1 according to the first embodiment. Hereinafter, the difference between the cultivation panel 4 and the cultivation panel 1 will be described. The cultivation panel 4 and the cultivation panel 1 having the same function are designated by the same reference numerals, and detailed description thereof will be omitted.

The cultivation panel 4 has a first hole group 31 and a third hole group 33. Further, the cultivation panel 4 has a second hole group 42 corresponding to the second hole group 32.
The second hole group 42 is provided at a position separated from the third hole row 43 by a distance L34 in the lateral direction from the third hole row 43 in which a plurality of through holes 430 are arranged in the longitudinal direction, and is provided in the longitudinal direction. It has a fourth hole row 44 in which a plurality of through holes 440 are lined up.

The second hole group 42 has the same shape as the first hole group 31 and the third hole group 33. That is, the cultivation panel 4 is arranged in the order of the first hole row 21, the second hole row 22, and the third hole row 43 in the lateral direction, and the through hole 220 of the second hole row 22 is arranged. And the through hole 430 of the third hole row 43 do not overlap in the longitudinal direction. The two adjacent through holes 220 of the second hole row 22 and the one through hole 430 of the third hole row 43 are arranged so as to be the vertices of an isosceles triangle.
Further, the cultivation panel 4 is arranged in the order of the sixth hole row 26, the fifth hole row 25, and the fourth hole row 44 in the lateral direction, and the through hole 250 of the fifth hole row 25 is arranged. And the through hole 440 of the fourth hole row 44 do not overlap in the longitudinal direction. The two adjacent through holes 250 of the fifth hole row 25 and the one through hole 440 of the fourth hole row 44 are arranged so as to be the vertices of an isosceles triangle.

In the cultivation panel 4 configured as described above, as in the cultivation panel 1, each hole group (first hole group 31, second hole group 42, third hole group 33) is divided into two. It is composed of a row of holes and is adjacent to each other (between the first hole group 31 and the second hole group 42, and between the second hole group 42 and the third hole group 33). The distance Lb in the lateral direction is set to be larger than the distance La between the adjacent through holes 20 in each hole group.
Therefore, according to the cultivation panel 4, even if the plant is grown in all of the plurality of through holes 20 while ensuring the same productivity as that of using the panel according to the comparative example, the size varies. It can be prevented from occurring.

In the cultivation panel 4, between adjacent hole groups (between the first hole group 31 and the second hole group 42, and between the second hole group 42 and the third hole group 33). The distance in the lateral direction is set to the distance Lb as in the cultivation panel 1, but the distance is not particularly limited. For example, the shortest distance between the through holes 20 between adjacent hole groups (for example, the shortest distance between the through holes 220 and the through holes 430) may be set as the distance Lb. As a result, the distance between adjacent pore groups in the lateral direction can be reduced while maintaining the distance between plants.

<Third embodiment>
FIG. 6 is a plan view of the cultivation panel 5 according to the third embodiment.
The cultivation panel 5 according to the third embodiment has a different position of the through hole 20 from the cultivation panel 1 according to the first embodiment. Hereinafter, the difference between the cultivation panel 5 and the cultivation panel 1 will be described. The cultivation panel 5 and the cultivation panel 1 having the same function are designated by the same reference numerals, and detailed description thereof will be omitted.

The cultivation panel 5 has a first hole group 31 and a second hole group 32. Further, the cultivation panel 5 has a third hole group 53 corresponding to the third hole group 33.
The third hole group 53 is provided at a position separated from the fifth hole row 55 by a distance L56 in the lateral direction from the fifth hole row 55 in which a plurality of through holes 530 are arranged in the longitudinal direction, and is provided in the longitudinal direction. It has a sixth hole row 56 in which a plurality of through holes 560 are lined up.
The third hole group 53 has the same shape as the second hole group 32 and has a symmetrical shape with the first hole group 31. That is, the cultivation panel 5 is arranged in the order of the sixth hole row 56, the fifth hole row 55, and the fourth hole row 24 in the lateral direction, and the through hole 560 of the sixth hole row 56. And the through hole 240 of the fourth hole row 24 overlap in the longitudinal direction. The two adjacent through holes 550 of the fifth hole row 55 and the one through hole 240 of the fourth hole row 24 are arranged so as to be the vertices of an isosceles triangle.

In the cultivation panel 5 configured as described above, similarly to the cultivation panel 1, each hole group (first hole group 31, second hole group 32, third hole group 53) is divided into two. It is composed of a row of holes and is adjacent to each other (between the first hole group 31 and the second hole group 32, and between the second hole group 32 and the third hole group 53). The distance Lb in the lateral direction is set to be larger than the distance La between the adjacent through holes 20 in each hole group.
Therefore, according to the cultivation panel 5, even if the plant is grown in all of the plurality of through holes 20 while ensuring the same productivity as using the panel according to the comparative example, the size varies. It can be prevented from occurring.

In the cultivation panel 5, between adjacent hole groups (between the first hole group 31 and the second hole group 32, and between the second hole group 32 and the third hole group 53). The distance in the lateral direction is set to the distance Lb as in the cultivation panel 1, but the distance is not particularly limited. For example, the shortest distance between the through holes 20 between adjacent hole groups (for example, the shortest distance between the through holes 550 and the through holes 240) may be set as the distance Lb. As a result, the distance between adjacent pore groups in the lateral direction can be reduced while maintaining the distance between plants.

<About plant cultivation equipment>
Below, a plant suitable for cultivating a plant using the cultivation panel 1 according to the first embodiment, the cultivation panel 4 according to the second embodiment, and the cultivation panel 5 according to the third embodiment. The cultivation apparatus 100 will be described. The plant cultivation device 100 is, for example, a device installed in a closed plant factory. It can be exemplified that the plant cultivation apparatus 100 is used for cultivating lettuce such as leaf lettuce. In the following description, the plant cultivation apparatus 100 has the cultivation panel 1 according to the first embodiment, but the same applies to the cultivation panels 4 and 5, so a detailed description thereof will be given. Is omitted.

FIG. 7 is a diagram showing an example of a schematic configuration of the plant cultivation device 100, and is a view of the plant cultivation device 100 viewed from the front. In FIG. 7, the front wall of the housing 103, which will be described later, is omitted.
The plant cultivation device 100 is a so-called multi-stage device having a rectangular parallelepiped outer shape and having a plurality of stages (three stages in the example shown in FIG. 7) in which cultivation shelves 102 for cultivating plants are formed in the vertical direction. In the plant cultivation device 100, a cultivation panel 1 is installed on each cultivation shelf 102, and a plant is cultivated on the cultivation panel 1.

The plant cultivation device 100 includes a housing 103 that collectively surrounds the cultivation shelves 102 in a plurality of stages, and a bottom plate 104 that divides the space inside the housing 103 into the cultivation shelves 102 in a plurality of stages and constitutes the bottom surface of each cultivation shelf 102. , A mounting portion 105 on which the cultivation panel 1 is mounted is provided.
In addition, the plant cultivation device 100 refers to the light irradiation device 106 that irradiates the cultivation panel 1 placed on each mounting portion 105 with light, and the plant cultivated using the cultivation panel 1. It is provided with a water supply device 107 for supplying nutrient solution and a blower device (not shown) for sending an air flow to each cultivation shelf 102.

The housing 103 includes an upper wall 131 located above the cultivation shelf 102, left and right walls 132 and 133 located on the left and right sides of the cultivation shelf 102, and a rear wall 134 located behind the cultivation shelf 102. It has a front wall (not shown) located on the front side of the shelf 102. The front wall can be opened and closed with respect to the upper wall 131, the left wall 132, and the right wall 133, and by opening the front wall, work such as installing a cultivation panel 1 on each cultivation shelf 102 can be performed. It has become like.

The rear wall 134 of the housing 103 is formed with a vent 134a for supplying the airflow generated by the blower to the cultivation shelf 102. Each of the vents 134a is provided at a position facing the growth area S1 described later on the cultivation shelf 102. In this example, a total of nine vents 134a are provided, three in the left-right direction and three in the vertical direction, corresponding to the position of the cultivation panel 1 installed on the cultivation shelf 102.

Further, an exhaust port (not shown) is formed on the front wall of the housing 103 to exhaust the airflow that has passed through the growth region S1 through the vent 134a to the outside of the plant cultivation apparatus 100. Each exhaust port is provided at a position facing the growth area S1 of the cultivation shelf 102. In this example, a total of nine exhaust ports are provided, three in the left-right direction and three in the vertical direction, corresponding to the position of the cultivation panel 1 installed on the cultivation shelf 102.

The bottom plate 104 divides the space surrounded by the upper wall 131, the left wall 132, the right wall 133, the rear wall 134, and the front wall of the housing 103 into a plurality of stages of cultivation shelves 102, and constitutes the bottom surface of each cultivation shelf 102. .. In the configuration of FIG. 7, three bottom plates 104 are provided in the vertical direction through the gap. Therefore, the plant cultivation device 100 is divided into three cultivation shelves 102 in the vertical direction by the bottom plate 104.

The mounting portion 105 is a portion protruding inward from each of the left wall 132, the right wall 133, the rear wall 134, and the front wall. The mounting section 105 sets the space in each cultivation shelf 102 above the mounting section 105 and below the growing area S1 in which the plants cultivated in the cultivation panel 1 grow and below the cultivation panel 1. It is divided into a water supply area S2 where the nutrient solution is supplied to the plants cultivated by the cultivation panel 1 by the water supply device 107.

The light irradiation device 106 is provided on the surface of the upper wall 131 and the bottom plate 104 facing the growth area S1 in each cultivation shelf 102, in other words, on the surface parallel to the cultivation panel 1, and is necessary for plant growth. Irradiate with light. It can be exemplified that the light irradiation device 106 is a device that irradiates light using an LED (Light Emitting Diode). Each of the light irradiation devices 106 is a straight tube extending in the left-right direction, and is composed of a plurality of (for example, five) LED lamps 160 arranged in parallel in the front-rear direction at predetermined predetermined intervals.

The water supply device 107 has a nutrient solution tank 107a for storing the nutrient solution. The nutrient solution tank 107a is placed on the bottom plate 104 in the water supply area S2 of each cultivation shelf 102.
The blower is attached to each vent 134a and includes a plurality of fans (not shown) that rotate to send airflow to the growth area S1 of each cultivation shelf 102. The blower rotates the fan at a predetermined time to send air to the growth area S1 of each cultivation shelf 102.

<About plant cultivation method>
The method of cultivating a plant with the plant cultivation device 100 described above is formed in a step of placing the cultivation panel 1 on the mounting portion 105 of the plant cultivation device 100 and installing the cultivation panel 1 and the cultivation panel 1. A step of planting a plant in the through hole 20 is provided. It does not matter which of the steps of installing the cultivation panel 1 and the step of planting the plant comes first. That is, after the cultivation panel 1 is placed on the mounting portion 105 of the plant cultivation apparatus 100, the plant may be planted (inserted) in the through hole 20 formed in the cultivation panel 1, or the cultivation panel 1 may be planted (inserted). After the plant is planted (inserted) in the through hole 20 formed in the plant, the cultivation panel 1 in which the plant is planted may be placed on the mounting portion 105 of the plant cultivation apparatus 100.

Then, it can be exemplified that the plant cultivated by the above-mentioned plant cultivation apparatus 100 is leaf lettuce. When leaf lettuce is cultivated by the plant cultivation apparatus 100, the leaves of leaf lettuce are likely to spread laterally (left-right direction or front-back direction), and the leaf lettuce are likely to shield each other. However, by growing using the cultivation panel 1, many leaf lettuce do not grow around one leaf lettuce, and it becomes difficult for the leaf lettuce to shield each other, so that it becomes easier to grow larger.

1, 4, 5 ... Cultivation panel, 10 ... Panel body, 20 ... Through hole, 21 ... First hole row, 22 ... Second hole row, 23 ... Third hole row, 31 ... First hole Group, 32 ... Second hole group, 100 ... Plant cultivation device, 210, 220, 230 ... Through hole

Claims (9)

A first hole row in which a plurality of holes are lined up in one direction and a position separated from the first hole row in the other direction intersecting the one direction, and a plurality of holes are lined up in the one direction. With a second row of holes, and a first group of holes with
The first distance between one of the plurality of holes arranged in one direction and the hole of the second hole row of the first hole group is adjacent to the second hole row. A third row of holes formed to be larger than the second distance between the holes,
Cultivation panel with. The cultivation panel according to claim 1, wherein the holes in the first hole row and the holes in the second hole row do not overlap in one-way positions. Two holes in the first hole row and one hole row in the second hole row, and one hole in the first hole row and the other hole row in the second hole row. Is the cultivation panel according to claim 2, which is arranged so as to be the apex of an equilateral triangle. The first hole row, the second hole row, and the third hole row are arranged in the other direction in this order.
The cultivation panel according to any one of claims 1 to 3, wherein the holes in the second hole row and the holes in the third hole row do not overlap in the longitudinal direction. Any one of claims 1 to 4 in which two adjacent holes in the second hole row and one hole in the third hole row are arranged so as to be vertices of an isosceles triangle, respectively. The cultivation panel described in the section. When viewed in the direction of the center line of the hole, the cultivation panel has a rectangular shape.
The cultivation panel according to any one of claims 1 to 5, wherein the one direction is the longitudinal direction of the rectangle and the other direction is the lateral direction of the rectangle. A first hole row in which a plurality of holes are lined up in one direction and a position separated from the first hole row in the other direction intersecting the one direction, and a plurality of holes are lined up in the one direction. With a second row of holes, and a first group of holes with
A third hole row in which a plurality of holes are arranged in one direction and a fourth hole row provided in the other direction at a position away from the third hole row in which a plurality of holes are lined up in the one direction. A second group of holes having a row of holes,
With
The holes of the second hole row and the holes of the third hole row of the second hole group are larger than the distance between adjacent holes of the second hole row of the first hole group. A cultivation panel in which the first hole group and the second hole group are separated in the other direction so that the distance between them is larger. A first hole row in which a plurality of holes are lined up in one direction and a position separated from the first hole row in the other direction intersecting the one direction, and a plurality of holes are lined up in the one direction. A first hole group having a second hole row, one hole among a plurality of holes arranged in one direction, and a hole included in the second hole group of the first hole group. A step of installing a cultivation panel comprising a third row of holes formed such that a first distance between the two rows of holes is greater than a second distance between adjacent holes of the second row of holes.
The step of planting a plant in the hole formed in the cultivation panel,
Plant cultivation method including. In the installation step, the cultivation panel is installed in a plant cultivation device provided in a closed plant factory.
The plant cultivation method according to claim 8, wherein in the planting step, leaf lettuce is planted in the pores formed in the cultivation panel.

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